Air conditioning apparatus



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Patented Dec. z8, 1943 UNITED4 STATES PATENT UFFICE 2,337,644 Ant' coNDiTIoNNG APrARA'rUs John G. Cadui, Cleveland, Ohio Application August o, 1941seria1No. 406,131

s claims. (C1. aci-28) This invention is a continuation in part of my pending application for Airconditioning apparatus Ser. No. 367,211 filed Nov. 26, 1940, and relates in particular to air conditioning apparatus for the conditioning of air in residences, which apparatus cooperate with hot air heating plants to effect heating of the conditioned air, sending such air through the air pipe lines of these plants into individual rooms and returning the air through cold air returns back into the air` conditioning apparatus.

The general object of this invention is an irnproved air conditioning apparatus of the type referred to above, particularly adapted to be used in conjunction with existing conventional heating and air conditioning plants in residences and the like and readily incorporable vtherein to convert these plants to all year air conditioning systems.

Another object of this invention is an improved air conditioning apparatus of the type referred to above which is of relative small size and has its parts compactibly arranged so that the apparatus occupies limited space and can readily be placed vadjacent existing conventional heating plants in residences and incorporated in such heating plant systems to convert same to all year air conditioning systems.

A further object of this invention is the provision of a'two part all yea;` air condition unit line 4--4 of Fig. 1.

Fig. 5 is a sectional view through an all year air conditioning" unit including a heating plant and an air conditioning apparatus of the type disclosed in Figs. 1 through 5.

Fig. 6 is a perspective view of the heating plant portion of the unit shown in Fig. 5; and

Fig. '7 is a perspective view of the air conditioning apparatus of the unit shown in Fig. 5.

Referring now to the exemplied form of the invention shown in Figs. 1 through 4 of the drawincluding an individual heating plant and an individual air conditioning apparatus arranged adjacent to the heating plant and interconnected therewith to a unitary device of relative simple construction which can be provided and installed at loW costs and is housed in a simple'and attractive cabinet made of two oppositely arranged parts.

In addition, the invention has certain other marked superiorities which radically distinguish it from presently known structures. These improvements or superior characteristics embodying certain novel features of construction are clearly set forth in the following specication and the appended claims; and a preferred form of embodiment of the invention is hereinafter shownl with reference to the accompanying drawings forrning part of the specication.

In the drawings:

Fig. 1 is a central vertical section through an air conditioning apparatus built in accordance with the invention.

Fig. 2 is a perspective View of the air condition? ing apparatus shown in Fig. f1, the View being ings, reference numeral 2 denotes an air conditioning apparatus housed `in a substantially rectangularly shaped cabinet 3 including a base plate 4, front and rear walls 5 and 6, and side walls 1 and 8. Cabinet 3, by means of vertically disposed walls 9 which are arranged parallel to side walls 'l and 8 and formed with upwardly and outwardly sloping upper portions I0 contacting said side walls and secured thereto, is subdivided into three chambers, a central combined air washer and blower chamber II and two side chambers I2. In addition, cabinet 3 has arranged in its rear portion a motor chamber I4 formed by rear wall 5, a vertical wall I5 and a horizontal wall I6, which motor chamber houses an electric motor I'l of conventional design adapted to actuate the blower and spraying devices, as will be later described.

The combined air washer and blower chamber II extends over the entire height of cabinet 3 and houses in its upper portion a water spray arrangement I8 embodying horizontally mounted water pipes I9 with downwardly extended spray heads 20 and in its lower portion a blower housing 2| supported by means of. U members 22 on base plate 4. The blower housing which has substantially circular shape and is o'f less widthv than the lower portion of chamber II, encases a rotary blower device 23 of the so-called squirrel cage type which embodies oppositely arranged intakes openly communicating with the side chambers I2 through truncated cone-shaped ring members 24 aligned with openings in walls 9 and side walls 25 of'housing 2I, which latter, inv addition, includes a rectangularly shaped outlet 26 extending outwardly through the front wall 5 of cabinet 3. The side chambers I2 furthermore communicate with chamber Il through rows of eliminators 21 formed ofa series of angularly extended metal strips which are disposed in parallel relation inwardly of the side walls 1 and Iland mounted in removable frames 28 in turn secured to walls 9.

The air to be conditioned enters air Washer and'blower chamber I I at the top thereof through an air intake conduit 29 which has arranged therein a removable air lter 30, and hence iiows through water spray arrangement IB to and through eliminators 21, side chambers I2 and ring'members 244 into the oppositely arranged intakes of blower device 23 from where the washed, iiltered and cooled air is discharged through outlet 26. While passing through the air conditioning device, iilter 3B removes the heavier floating particles from the air and the downwardly directed water jets of the Water spray arrangement I8 wash and cool such air and, in addition, eiect acceleration of the downward flow of the air for the purpose of facilitating lde-humidication of the washed air by eliminators 21 positioned rectangularly to the direction of the iiow of the washed and cooled air. The water spray arrangement; I8 communicates through a water pipe 3I with the main waterv line (not shown) and is principally fed by recirculating water discharged fromspray heads 20 and drippings of eliminators 21 passing into the lower portion of chamber II. For such purpose, lower portion of chamber II is arranged directly below spray heads 20 to form a water reservoir 32 provided with an overiiow pipe 33, which reservoir gathers water discharged from heads 2li, cools same if so desired by means of a cooling unit 36 arranged therein and permits of recirculation of such water, as will be presently described.

' arrangement I8, all for the purpose of continuously circulating water from` reservoir 32 to and through spray arrangement I8 back to the reser- `loir etc. In this process, water lost through evaporation or humidiiying of the air to be conditioned is added through water pipe 3|, the flow of such water through Ypipe 3l being controlled either automatically or manually according to well known practices in the art.

All air passing through blower housing 23, the housing 2l of which is encircled and covered by the water in reservoir 32, is continuously exposed tothe cooling effect of the water in said reservoir, an arrangement which insures suiicient cooling of the air while passing through the air conditioning apparatus,.particularly, when the water in reservoir 32 is cooled by cooling unit 34 as clearly shown in Fig. 4.

The described air conditioning apparatus which may readily be coupled to any conventional hot air heating plant, is particularly adapted for use in so-called two part all year air conditioning units, see Figs. 5 through '1. These gures show a unit 40 embodying a self-contained heating plant 4I arranged in a rectangularly shaped housing 4 2 with an air outlet 43 at its upper wall 44 and an air intake 44 in its rear wall 45, and

4I and cabinet 41 of air conditioning apparatus 48 are equal in height and width to form a uni- -tary structure in which plant 4I and apparatus This arrangement eiects proper alignment of housing 42 and cabinet 41, when housing 42 and cabinet 41'are placed adjacent to each other and partly shifted into each other, and also permits proper securing of housing and cabinet to each other by screws 50' extended through holes 5I in cabinet 41 into threaded holes 52 in frame 50. The thus formed single structure includes a single inlet 53 at the top portion of cabinet d1 and a single outlet 43 extended from the upper wall of housing 42.

Having thus described my invention, what I claim is:

1. In an air conditioning apparatus a, casing, a vertically arranged main compartment in said casing having an intake at its upper end and huid-tightly closed at its lower end, closed side compartments in said casing arranged at opposite sides of said main compartment and in communication therewith substantially midway between its opposite ends, air washing means in the upper part of said main compartment, an overflow pipe in the lower part of said main compartment arranged to hold a body of water collected therein below the level of communication between said main compartment and the side compartments, a blower in said lower part of said main compartment having a fluid-tightly sealed housing, including inlets in communication with said side compartments only, submerged in the water in said main compartment and water feeding means for said air washing means including pumping means in communication with the water in the lower part of said main compartment to eiect recirculation of water discharged from said air washing means into said lower part of said main compartment.

2. In an air conditioning apparatus a casing, a vertically arranged main compartment in said casing having an intake at its upper end and huid-tightly sealed at its lower end, closed side compartments in said casing arranged at opposite sides of said main compartment and in communication therewith substantially midway between ts opposite ends, air washing means with downwardly extending sprayer heads in the up per part, of said main compartment, an overow pipe in the lower part of said main compartment arranged to hold a body of water collected therein below the level of communication between said main compartment and said side compartments, a blower in said lower part of said main compartment having a uuid-tightly sealed housing, including inlets in communication with said side compartments, sugmerged in the water in said main compartment, and water feeding means for said air washing means including pumping means in communication withy the water in said lower part of the main compartment to effect recirculation of Water discharged from said air washing means into said lower part of said main compartment. 1

3. In an air conditioning apparatus acasing, a vertically arranged main compartment in said casing havingy an intake at its upper end and fluid-tightly sealed at its lower end. closed side compartments in said casing arranged at oppo- 3 part of said main compartment arranged to hold a body of water collected therein belowA the level of said communicating passages. and w'ater feed-v ing means for said air washing means including Apumping means in communication with thewater in said lower part of the main compartment to effect recirculation of Water.l discharged from said air washing means intoisaid lower part of 

